Manufacture of seamless tubes.



R. REIMANN 6: A. P. PARSELLE. MANUFACTURE OF SEAMLESS TUBES.

'APPUCATION FILED APR-13' 1914.

Patented Jan. 23, 1917 I H H 5 X r J i 1' UNITED STATES PATENT ()FFIGE ROBERT mIM m m) ABSALOM PEROIVAL yglgsztm, OF BIRMINGHAM, ENGLAND. MANUFACTURE OF smmmss T-UBES.

1,213,539 Specificatipn of tettczg- Patent. Patented Jan. 23, 191 "7.

a nmm .1 m April 1 21 Ser 3 3 6- T all whom itmag cancern: cl'lrectiqn the spiral qverrr-lln but Was pre- Be it lmqwn that e, ROBERT RtIIMANN vented from rotutil' g, whereas when it and ABSALOM PERCIYAL PARSELLE, both sub moved in the opposite klirctiop the spiral jG tFl of the King of rent Brit-41in, anclrecausqecl rotation of the feed bay. The t'ed siclililg respectivly 288 Slade road, Birbar is relatively heavy untl p qssesses o nsid 55 rninglmm, and 71 lvllnsteml r slcl, Gmvglly (arable IHOIHQQUUH with the result that it is Hill, Birmingham, lvarwickshireg England, t t overrun causing erratic operation, have invented cet'tain new and useful 1man ct it is the object of the ptsent illfllji b ltl PI-OVglllBlltS in the Mg pufactum of Seamless t0 ena blelt better finished tubg to b 01)- Tubes, f which the fQllQWing s ip ciwi g d by nt r q ing t a d @m her Q11- 60 f amles tubes, partlculqnly metal tubes, and thus interferes; with the fittishing 0f the Q; the kind in whlgh pi c d bil et qr Qf the 2 9% 11 191 i q rw fl i the 5 mo i ounted 11130 a m mlrel Wluqh 1s p essmtsa e-12y w gm -t w ly W draw n 6 fed between a mi pilggar olls. @11 SQPRQF l H t or the mqst pa t thg in ent q d tss T9 hm i r v wd F11 Pi in m imprgvements o ma hines 0 the type e prfi finb11 2 mmm imqn a sh i't described in our and m hers p o Br ti h ig haft sm o fi t l i n w tl fi Patent specification No. 25667 D. 1912. sh f y g th s ira P S i 9 70 111 the ap Ql lbany g d i gs, wh w HM? Q fi rfi l 'fi illusstrate the p1flffilledmgtll05l i a ying 2%; th p e-i nt ns ru tfiqn th fid 1 2 out this i1'1ye11ti0n, Figure 1 a wgi u im A, msfi ad car n a 513 1 11 S li Q? k section shQWing the mu king 13 91 f r feedmy li %-Fl w l l mi hli $2. m? 1 Q ing the billet u to th pil el 15 .11% an film vfilant 21 a d 1u-m:-gh g a 7 rotating it during the fegcl. Fig- 21S fi d O -Y tll Wl h a q at w y l l similar septional View of an addition tQ that n te by 9 t 51 112 h machine. Fig. 3 is ,a sgction on 111, l ne C a s W t n pmfi lx fi9$ t 3- ,3 of F 2 lqoking tqwal d the L to t. sha t Winc 1s upm w i 4 i cfiq m t s li lfi W 37 91 abl l lringi .ii a fi fks fi Tl il #5 Fig. -1. aha ft M- 1 y a sulm 5w thmd Lik e t s ind at ik Harts thmug a d. a a d. t W m' wmg ill. .1 Qu th d awings, t h Whwh th b A u t? In the type of'mztchine m hich his infr l 1 FF Rl Q w wg Qt 3 ventiqn app i a pai f mat n ilger vi a t' w mu qt whih ail.-

1 11 is used pf gome wall kgmm type, and gageg splipgs, Thi rg tchgt dgvipg ig'gf a h t d hil fiifi t d u w h w ,rolls a d n sil -abl F P- F k m l l is f rc d in th g p f fi mll S st l ll fi m H n firzm t e 1 9 1"?! quell: t i n of hs r9 15 nqw 91 h Pl w 9 11 2*; wa t l m Pb? 91 h y 4 b t, n at m h r tat Q pf t 5911 th 91f th PM 1% f m d W1 atche t g ni- 99 bi let is qrced ba k and again 9 u t a l h apzlwlfi @arrmd b b fwkqt the rolls. During this forwar mo gmegt T19 yap gs qttggchgcl t9 tgtqp it is mat d sl ghtl @Ill fi -d ia t a lllQll Q k- .19 ihfilcylmfls Wi s-h- Warwm fi w an sh? @Q QRF Q22 .9 @51- n th ma h n dwwib in t i m t sl b Ham ft we 1' u A 5?? l3ri b m t m errl zd m tbs li d W m Yf 1s pmw lgd at 1 i a low bs va t-9& n?! 8 t9 lm m 3 dm t c t9 m9 mgl 9 6 1? l ft- A Stu 9 A hpd fqp mgg upon ita pi1;a l whlch 5 provided at each ind of the cyhndg z" 'lhe gagged a StQtl QHQ IY ovgrrmm lgg c utch 59 mg F parmqs gt l t s fprtvglry l engl a g c rgwetl Q0 armgw tilt; $119 w tax HQYQQ 1959 12s stsinet q bar to screw farther to the left, or .move

caused to rotate.

a. greater distance than the ram. This is effected as follows :As the ram moves to the right due to the throw-out action of the pilger rolls the ratchet device at H overruns and no rotation is imparted to the feed bar. When compressed air is admitted by the tube F to the cylinder the parts move to the left and the ratchet device at H is held by the pawl and the spiral E is This rotation is transmitted through the gears D C to the feed bar. As stated, rotation of the feed bar causes it also to project farther from the" ram. Thus when the ram has completed its forward stroke the billet is pushed farther into or through the rolls.

The bloom Y is attached to a mandrel Z as usual, (see Fig. 2) but instead of this being fixed directly to a socket X on the feed bar A, an intermediate bar J is used, which is screw-threaded at J", and which threads are slotted, as indicated at J to form a keyway. The usual sleeve or support K is attached to a nut L, which screws on the thread J and the nut L carries a plunger N which is arranged to be held in the keyway formed in the threads by means of a spring. When the plunger is seated in the keyway J the nut and sleeve K rotate with the bar J. If, however, the plunger is withdrawn and the nut held stationary, the nut will screw back over the screw-threaded bar J and the sleeve K will be withdrawn. The plunger, therefore, has attached to it a trigger M, which is caused to engage a curved stop 0, carried by the standards P of the machine. Normally the sleeve K supports the mandrel, as shown in Fig. 2, until the trigger M strikes the stop 0. The trigger then moves and withdraws the plunger and also holds the nut stationary while the bar is longitudinally moved relative to the nut by the operation which is being performed on the billet. With the usual constructions, the support K advances with the mandrel, and as it must extend as close to the billet Y as is possible, it prevents the billet being finished off to the extreme end by the rolls.

-By arresting this advance in this way, the

billet can be finished to the end, effecting economy.

It will be seen that by the spiral bein mounted upon the comparatively light sha t E it possesses little momentum so that inaccuracy due to excessive rotation of the feed bar is prevented.

What we claim as our invention and desire to secure by Letters Patent is 1. In a machine for use with a pilger mill, the combination of a reciprocating feed bar, a ram for moving the feed bar, means for reciprocating said ram, a screw and nut connection between the feed bar and the ram, a shaft carried by the ram having a spiral thread, means for preventing the rotation of the shaft when moving in one direction, a gear wheel slidably mounted on the shaft and arranged to rotate therewith, a second gear meshing therewith and slid-ably mounted on the feed bar and arranged to rotate therewith, and means for restraining the gears from movement in a longitudinal direction with the feed bar and shaft, substantially as set forth.

2. In a machine for use with a pilger mill, the combination of a reciprocating feed bar, a ram for moving the feed bar, means for reciprocating said ram, a screw and nut connection between the feed bar and the ram, a shaft connected to the ram and arranged to be reciprocated therewith, a spiral thread on said shaft, a pawl and ratchet connection between the ram and the shaft carried by the ram and arranged to retain the shaft from rotation when the ram is moved in one direction, a gear wheel on the shaft and adapted to rotate therewith, a second gear wheel on the feed bar and adapted to rotate therewith, and bearings for said gear wheels, said bearings being adapted to maintain the gear wheels from movement in a longitudinal direction with the shaft and the feed bar, substantially as set forth.

3. In a machine for use with a pil er mill, the combination of a reciprocating eed bar, a rain for moving the feed bar, means for reciprocating said ram, a screw and nut connection between the bar and the ram, supporting brackets mounted on the ram, a gear wheel mounted in said brackets surrounding the feed bar, a spline connection between the feed bar and said gear wheel, a shaft mounted on the ram and adapted to move therewith, a spiral spline on said shaft, a second gear Wheel mounted on the shaft and the spiral spline seated between said brackets, and means for preventing the spiral shaft from rotating when the ram is moved in one direction, substantially as set forth.

4. In a machine for use with a pilger mill, the combination of a feed bar, a ram, means for reciprocating said ram, a screw and nut connection between said feed bar and said ram, a shaft geared with said feed bar, a spiral on said shaft, and a ratchet device carried by said ram, causing said shaft to rotate during reciprocation of said ram in one direction only, a screwed bar by said feed bar, a mandrel attached screwed bar, a idefor said mandrel, a nut carried by sai guide, and engaging said screwed bar, and a stop device engaged by said nut causing it to disengage from said screwedbar substantially as set forth.

- In testimony whereof We have signed our cm;- of this patent may be obtained for five cents each, h Washington, D. c.

carried names to this s to said two subscribm Witnesses:

g witnesses.

ROBERT REIHANN. ABSALOM PEBGIVAL PARSELLE.

E1210 WILLIAM IiiGALL, E NEST WILLIAM POOLE LINES.

y addi'easing the s Commissioner of ratents,

pecification in the presence of 

